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Antisymmetric distributed Bragg reflector as hybrid filter for compact integrated photonics

Author

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  • Rajorshi Bandyopadhyay
  • Rajib Chakraborty

Abstract

Antisymmetric multi cavity resonator useful for flat top transmission is reported which is simple and compact than the similar conventional structures. The study of the output spectra is carried out in terms of layer thickness and change in angle of incidence. Electro-optic property of the EO polymer is utilized to convert flat-top output with full width half maximum (FWHM) bandwidth of 10 nm into narrowband output of 0.64 nm (FWHM bandwidth) by applying a maximum voltage of 500 V across the structure. It was shown here that by controlling the low index layer widths, angle of incidence of the light and applying a voltage of 300 V results in a flattop spectrum of FWHM bandwidth of 2.5 nm with tuning sensitivity 0.033 nm/V. The tuning sensitivity and bandwidth of the reported hybrid filter can also be customized comparatively at lower applied voltage than the previously reported electro-optically tunable filters.

Suggested Citation

  • Rajorshi Bandyopadhyay & Rajib Chakraborty, 2019. "Antisymmetric distributed Bragg reflector as hybrid filter for compact integrated photonics," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 33(1), pages 18-30, January.
    • Handle: RePEc:taf:tewaxx:v:33:y:2019:i:1:p:18-30
    DOI: 10.1080/09205071.2018.1518731
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